Fashion is a family affair for Stella McCartney

She may be eight months pregnant with her fourth child, but Stella McCartney doesn't appear to have slowed down one bit, if her show today in Paris is any indication.

Her father, Sir Paul McCartney, with his girlfriend Nancy Shevell, joined a glamorous front-row at the Opera Garnier, which included Salma Hayek, Liv Tyler and Beth Ditto.

Hayek was accompanied by her husband Francois-Henri Pinault, who is CEO of PPR, the parent company of the Gucci Group, which owns a 50 per cent stake in the Stella McCartney label.Blur's Girls and Boys was a fun and fitting soundtrack for Stella's spring/summer 2011 collection, which referenced geek-chic menswear and romantic femininity in equal measure.

Skirts split up to the thigh showed sexy glimpses of tanned leg, while racer-back tops turned toned shoulders into a new erogenous zone (don't fear, we've got six months to perfect the Michelle Obama workout).

'We wanted skirts to go longer for next spring/summer, but we didn't want it to look - dare I say it - mumsy,' she explained.